electronic dissy's and igniters???

[fangsport]

to save me from pulling one to bits, do electronic distributors have mechanical advance by way of counterweights?? i'll lock it up if they do.

further more, are the igniters specific to the dizzy? what i meaning is can a 2TG/3TEU/4AG etc coil and igniter be used to run a 4K electronic dizzy and vice versa?

my wee Starlet should be painted this weekend and i'll then start getting the engine sorted, so i'm raiding my parts bin to get any little gains i can

[fangsport]

c'mon, someone must be able to advise me before i start meddling with something i know jack about??

[Ae92typeX]

depends on the dizzy type- you get electronic ones with mechanical advance, and others without.

[crispy'86]

To answer your question Joe, yes the electronic distributors from the same era as 4age blue top, 4k, steu all have mechanical advance by way of counterweights/ springs in the bottom. I just looked at several and all are the same.

As for the igniters in the dizzy (of course they are reasonably the same) they are specific to dizzy in some ways with a few models. What you would need to look for is the specs for the ignitor and that they are same values as what ap[plication you use them for. All 4age early types have different pins for the igniter and wires too so as long as you have the diagram for what wire has power/ pulse from dizzy/ etc you should be alright.
The main thing to remember is are the values the same. Voltage to power up igniter is 5v compared to 3v for example. Hope i haven't confused you too much with this one

[Virtual Genocide]

I hope your not using an electronic dizzy on a K engine :/

[z|gen]

I hope your not using an electronic dizzy on a K engine :/

whys that?
some K series engines come with them from factory..

[fangsport]

I hope your not using an electronic dizzy on a K engine :/

i will if i can find an ignitor that will work on it. it didn't have one, but i do have a few 2tg/3teu igniters.

why, wouldn't you use one??

[fangsport]

To answer your question Joe, yes the electronic distributors from the same era as 4age blue top, 4k, steu all have mechanical advance by way of counterweights/ springs in the bottom. I just looked at several and all are the same.

cheers, i thought they would have, but it pays to check before molesting it . the motor in the engine bay is on loan, but i will have a play with it to get as much gains legal for C grade, then give it back.

All 4age early types have different pins for the igniter and wires too so as long as you have the diagram for what wire has power/ pulse from dizzy/ etc you should be alright.
The main thing to remember is are the values the same. Voltage to power up igniter is 5v compared to 3v for example. Hope i haven't confused you too much with this one

more than like use a T series as the plugs appear to be the same, but if it is only a voltage issue, then it shouldn't be a biggie to reduce it somehow. not overly confused by electronics, just don't like to fry things unecessarily when experimentng.

[crispy'86]

That last comment is very true. I'm not one to overly like frying elec. components and let the smoke out of them..

Doing my bit to help out.

[Virtual Genocide]

Just my opinion, they're an old design and not very reliable. Points will give you just as good results aslong as you know what your doing with the advance curve.

Your not going to get

any little gains i can

if you use the points dizzy.

Be carefull with 4k electronic dizzy's some have the pulse generator inside the dizzy with an external ignitor, others have the ignitor as well as the pulse generator inside the distributer, make sure you use the correct coil.

[drftnmaz]

yea i take it you have a 4k dissy because every 5k elec dissy i've seen has a internal ingintor.. its only the 4k ones i've seen that dont.

why are you locking the mech advance?

[fangsport]

why are you locking the mech advance?

can qoute the exact term, but, when you lock the mechanical advance you can run more fixed?static? advance. whilst it does make the engine a bitch to turn over and start, it does seem to improve the power across the rev range.

i'm sure someone can elaborate further with the proper terminology and reasoning.

[matt dunn]

i'm sure someone can elaborate further with the proper terminology and reasoning.

I think you will be the only one with some form of reasoning for that?

If you set up the weights and spring right you can control the advance and there is no need to lock it???

[fangsport]

I think you will be the only one with some form of reasoning for that?

a certain local engine builder locked up the dizzy on a certain black escort i built and it certainly hauls (when it actually enters ), and is known to do it to a few dizzy's.

[suberimakuri]

thats stupid to lock the dizzy on na motor.

there's no way you can run full advance at low rpm without running stupidly rich.

there are different types of ignitors....
basically for jdm k, t, r motors.... the signal from dizzy pickups goes to the ignitor (actually called a module as dumb), it controls dwell and does not do any spark/advancing.
the distributor just has vr sensor pickups and still magnetic weights to give advance... even vacuum advance (sometimes dual diaFRAM sp?)

[drftnmaz]

i had a locked dissy in my first 4k turbo and wen i changed back to a normal one it was way better. k series seem to love advance.

its only a guess but i'd imange you'd have to have massive comp ratio to run such a high static advance to compensate for locking it??

[StuartM]

if the engine is fuel injected aswell as having magnetic points the vr sensor is sometimes connected to the ecu, which controls advance.

i have seen this in 1S, 3S-GE, 3S-FE, 4A-GE, but some 16v 4A-GEs did and some diddnt have ecu controlled advance.

[suberimakuri]

good summary, but... all 4age's have ecu controlled advance. That's how the ecu knows the rpm. You can fit a 4k dizzy though with a spacer (if using carbs, fuel only standalone, etc), but I don't see the point.

it's only the early motors like 4keu, 2tgeu, 3teu, 18rgeu that had fuel injection and separate elec ign with weights.